Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Yeonjin Do Yu
Pharmacist in Ontario, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427771732
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Registry record
Entity type Individual (Type 1)
Name Yeonjin Do Yu
Sex Female
Practice address 1050 N Mountain Ave, Ontario, CA, 91762
Phone (909) 986-1509
Enumeration date Sep 21, 2022
Last updated in NPPES Sep 21, 2022
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Yeonjin Yu?
The National Provider Identifier (NPI) for Yeonjin Yu is 1427771732, a Type 1 (individual) record in the CMS NPPES registry.
Where does Yeonjin Yu practice?
The practice location on file with NPPES is in Ontario, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-21.